Yawgmoth, Thran Physician, Vindictive Vampire, and Abzan Ascendancy

Prerequisites

• Yawgmoth, Thran Physician on the battlefield
• Vindictive Vampire on the battlefield
• Abzan Ascendancy on the battlefield

Steps

1. Activate Yawgmoth by paying 1 life and sacrificing the undying creature
2. When the creature dies, Vindictive Vampire, Abzan Ascendancy and the undying creature's undying ability trigger
3. Resolve the Vindictive Vampire trigger, causing you to gain 1 life and dealing 1 damage to each opponent
4. Resolve the Abzan Ascendancy ability, creating a 1/1 Spirit creature token
5. Resolve the undying trigger, returning the creature from your graveyard to the battlefield with a +1/+1 counter on it
6. Resolve the Yawgmoth ability, putting a -1/-1 counter on any creature and drawing a card
7. Activate Yawgmoth by paying 1 life and sacrificing another creature
8. When the creature dies, Vindictive Vampire triggers, causing you to gain 1 life and dealing 1 damage to each opponent Resolve the Yawgmoth ability, putting a -1/-1 counter on the undying creature and drawing a card
9. Repeat

Results

• Infinite card draw
• Infinite draw triggers
• Near-infinite creature ETB
• Near-infinite creature LTB
• Near-infinite creature sacrifice triggers
• Near-infinite damage
• Near-infinite death triggers
• Near-infinite lifegain triggers